Public folders, introduced in the first version of Microsoft Exchange, are designed for shared access and provide an easy and effective way to collect, organize, and share information with other people in your workgroup or organization. Public folders are hierarchically organized, stored in dedicated databases, and can be replicated between servers running Exchange.
Below is the step to add new replica existing public folder. This step is useful either :
1) Add new replica for new server
2) To enable back replica for existing server that have issue with public folder’s database (corrupted, etc)
Here are the step :
1) Create a new public folder database on newserver02
2) Use EMS, navigate to the exchange installation directory “…\scipts” folder.
3) Use .\AddReplicaToPFRecursive.ps1 –Server existingserver01 –TopPublicFolder “ \” –ServerToAdd newserver02
4) Use .\AddReplicaToPFRecursive.ps1 –Server existingserver01 –TopPublicFolder “\NON_IPM_SUBTREE” –ServerToAdd newserver02
5) Wait for the process to complete. Please note it will take 4-5 hours for each command to complete.
This should replicate back your existing public folder to new public folder with existing permission rights.